I usually can't find anything related to the Ram Box online at all, and whenever something does pop up, it's generally a complete box for several hundred dollars. It's disappointing, since some of those units are the ones that inspired me to take a closer look at C3V in the first place.

That said, I personally wouldn't have a complaint if the remaining figures were used. It was announced back when it was cheap like normal, after all, although I do agree that official proxies are a good idea. I don't know how common options for what I presume the sculpts to be from the pictures are, but if something can be found then that'd be great.

Yeah, even though I have a Ram box, and the figures that weren't used, I don't think that they should be used, unless there's C3V approved proxies, because it's just too hard to find them, let alone be able to justify buying them with the prices they go for.

Are there any other heroes in the heroscape community wields 2 guns other than Guilty? I might to make a custom that duel wields or something.

In official, and C3V/SoV heroscape, Guilty McCreech, and Calibrax the Kyrie Warrior dual wield guns. You could also probably count Omegacron, and maybe even Zetacron. If you are asking about all heroscape designs in general, just think about how many people have played the game since it was released in 2004. Just about everyone who plays it more than a few times will think of a custom, and those that think of customs long enough will eventually design something that dual wields. That's 15 years worth of creations. You can bet that there's definitely been more than a few posted to this site.